[july_favre]

I cant figure out how to change it if you can. Does anyone know how?

[Kookaburra]

Hi july_favre,

It will put out both. Basically 1 unit can equal 1mm or 1 inch and depending on your dxf file size, it will give you the right result.

Example: If you have a drawing that is a 10mm x 10mm square and contour it the g-code will output movements to contour 10 x 10, if you then run that on a machine setup to run in inches the machine will do a 10 x 10 inch square, this is not what you want.

If you want to change the dxf to be actual inch size so you get an inch output then you must scale the dxf to suit. The scale value you must set is 0.03937. This value will scale the square to a 0.397 inch square which is the inch equivilent to 10mm. After the scaling of the dxf you will get the right output for your g-code.

FYI - If you want to go the other way and want to turn an inch dxf into metric you can set a scale value of 25.4 and the result will give you a metric drawing.

The scale values are always the same when scaling to inches or metric so it is handy to write them down.

I hope this helps you.